TDK Develops 320GB Optical Disc

[soumya]

TDK has developed a prototype optical disc that can hold up to 320GB of information -- that's more than six times the current highest-capacity media available.

The 12-centimeter disc has 10 recording layers, each of which can store 32 Gigabytes. In comparison a Blu-ray Disc can hold 25GB on each layer, and a dual-layer disc is the highest capacity generally available at present.

As more layers are added to a disc it becomes more difficult to reliably read and write data because the laser has to shine through the layers. To help get around this, TDK engineers created a disc that uses clearer plastic so that more light can be shone through.

The disc improves on a 200GB prototype that was shown by TDK in 2006, but holds less data than a 400GB prototype disc that was presented by Pioneer last year. The Pioneer disc packed 16 recording layers onto a conventional 1.1-millimeter thick, 12-centimeter disc.

All three prototypes have something in common: their manufacturers have announced no plans to commercialize the discs. Their use in Blu-ray Disc players and recorders would require standardization efforts at the Blu-ray Disc Association and likely minor hardware changes in disc drives. So for now they serve as an indicator to where optical disc technology stands in the research laboratory.

PCWorld

[topgear]

Impressive indeed. But what's the use if we are not going to get one of those ?

Darn! even dual layer DVd has not come cheaper & don't think about the price of recordable Blue Ray or HD DVDs.

BTW, just wondering what kind of device they've used to record that 320GB Disc !! ?

[x3060]

yeah ... the dual layer disc price haven't come down yet , but am sure this thing will remain in the shelves.

[rosemolr]

if they sell it in a reasonable price then..it will help the downloaders..